Growing a glue factory: Open questions in laticifer development

Johnson, Arielle; Moghe, Gaurav D.; Frank, Margaret H.

doi:10.1016/j.pbi.2021.102096

Cited by 11 publications

(6 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the latter, the terminal walls of each cell in the row may remain intact (nonanastomosing) or can be partially or completely (anastomosing) dissolved ( Fahn, 1979 ). In some cases, anastomosing laticifers can also branch through lateral anastomosis between two laticifer rows, forming an interconnected system of tubes throughout the entire plant ( Demarco et al, 2006 ; Ramos et al, 2019 ; Johnson et al, 2021 ). Although these general aspects of laticifer development are well-known, how the laticifers grow is a question that is still postulated ( Gama et al, 2017 ; Johnson et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Laticifer growth pattern is guided by cytoskeleton organization

et al. 2022

View full text Add to dashboard Cite

Laticifers are secretory structures that produce latex, forming a specialized defense system against herbivory. Studies using anatomical approaches to investigate laticifer growth patterns have described their origin; however, their mode of growth, i.e., whether growth is intrusive or diffuse, remains unclear. Studies investigating how cytoskeleton filaments may influence laticifer shape establishment and growth patterns are lacking. In this study, we combined microtubule immunostaining and developmental anatomy to investigate the growth patterns in different types of laticifers. Standard anatomical methods were used to study laticifer development. Microtubules were labelled through immunolocalization of α-tubulin in three types of laticifers from three different plant species: nonanastomosing (Urvillea ulmacea), anastomosing unbranched with partial degradation of terminal cell walls (Ipomoea nil), and anastomosing branched laticifers with early and complete degradation of terminal cell walls (Asclepias curassavica). In both nonanastomosing and anastomosing laticifers, as well as in differentiating meristematic cells, parenchyma cells and idioblasts, microtubules were perpendicularly aligned to the cell growth axis. The analyses of laticifer microtubule orientation revealed an arrangement that corresponds to those cells that grow diffusely within the plant body. Nonanastomosing and anastomosing laticifers, branched or not, have a pattern which indicates diffuse growth. This innovative study on secretory structures represents a major advance in the knowledge of laticifers and their growth mode.

show abstract

Section: Introductionmentioning

confidence: 99%

Laticifer growth pattern is guided by cytoskeleton organization

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The distinct morphologies of laticifer systems differ in the extent of organelle degradation upon reaching maturity [ 44 , 67 , 68 ]. Autophagy is said to be involved in the developmental process of mature laticifers with mostly degraded cytoplasm and ruptured plasma membrane [ 67 , 69 ]. This observation aligns with the findings of this study, as fully developed laticifer cells of H. lupulus contain only latex products and a minimal peripheral cytoplasm.…”

Section: Discussionmentioning

confidence: 99%

Updating the Knowledge on the Secretory Machinery of Hops (Humulus lupulus L., Cannabaceae)

Ramos,

Iwamoto,

Piva

et al. 2024

Plants

View full text Add to dashboard Cite

Cannabaceae species garner attention in plant research due to their diverse secretory structures and pharmacological potential associated with the production of secondary metabolites. This study aims to update our understanding of the secretory system in Hops (Humulus lupulus L.), an economically important species especially known for its usage in beer production. For that, stems, leaves, roots, and inflorescences were collected and processed for external morphology, anatomical, histochemical, ultrastructural and cytochemical analyses of the secretory sites. Our findings reveal three types of secretory structures comprising the secretory machinery of Hops: laticifer, phenolic idioblasts and glandular trichomes. The laticifer system is articulated, anastomosing and unbranched, traversing all plant organs, except the roots. Phenolic idioblasts are widely dispersed throughout the leaves, roots and floral parts of the species. Glandular trichomes appear as two distinct morphological types: capitate (spherical head) and peltate (radial head) and are found mainly in foliar and floral parts. The often-mixed chemical composition in the secretory sites serves to shield the plant from excessive UVB radiation, elevated temperatures, and damage inflicted by herbivorous animals or pathogenic microorganisms. Besides the exudate from peltate glandular trichomes (lupulin glands), latex and idioblast content are also likely contributors to the pharmacological properties of different Hop varieties, given their extensive presence in the plant body.

show abstract

“…For example, in Catharanthus roseus (Madagascar periwinkle), the biosynthesis of vindoline, a precursor of the anticancer drugs vinblastine and vincristine, was located to laticifer and idioblast cells . However, relatively little is known about the differentiation and development of these cell types …”

Section: Introductionmentioning

confidence: 99%

“… 9 However, relatively little is known about the differentiation and development of these cell types. 10 …”

Section: Introductionmentioning

confidence: 99%

Engineering Plant Cell Fates and Functions for Agriculture and Industry

Tansley,

Patron,

Guiziou

2024

ACS Synth. Biol.

View full text Add to dashboard Cite

Many plant species are grown to enable access to specific organs or tissues, such as seeds, fruits, or stems. In some cases, a value is associated with a molecule that accumulates in a single type of cell. Domestication and subsequent breeding have often increased the yields of these target products by increasing the size, number, and quality of harvested organs and tissues but also via changes to overall plant growth architecture to suit large-scale cultivation. Many of the mutations that underlie these changes have been identified in key regulators of cellular identity and function. As key determinants of yield, these regulators are key targets for synthetic biology approaches to engineer new forms and functions. However, our understanding of many plant developmental programs and cell-type specific functions is still incomplete. In this Perspective, we discuss how advances in cellular genomics together with synthetic biology tools such as biosensors and DNA-recording devices are advancing our understanding of cell-specific programs and cell fates. We then discuss advances and emerging opportunities for cell-type-specific engineering to optimize plant morphology, responses to the environment, and the production of valuable compounds.

show abstract

Growing a glue factory: Open questions in laticifer development

Cited by 11 publications

References 74 publications

Laticifer growth pattern is guided by cytoskeleton organization

Laticifer growth pattern is guided by cytoskeleton organization

Updating the Knowledge on the Secretory Machinery of Hops (Humulus lupulus L., Cannabaceae)

Engineering Plant Cell Fates and Functions for Agriculture and Industry

Contact Info

Product

Resources

About